2.13.2

• #883 Guard against empty property names
• #881 Convert .env property names with Environment variable names rules
• #880 Ignore Properties that cannot be represented by a String
• #876 Bump maven-surefire-plugin from 3.0.0-M7 to 3.0.0-M8
• #875 Bump maven-surefire-report-plugin from 3.0.0-M7 to 3.0.0-M8
• #874 Bump surefire-testng from 3.0.0-M7 to 3.0.0-M8
• #873 Bump surefire-junit-platform from 3.0.0-M7 to 3.0.0-M8
• #872 Streamline ConfigMapping API
• #871 unwrap config instead of just cast
• #869 Remove @experimental from stable APIs